106 Prof. J. 0. Westwood on 



III. pi. Ixxv., figured the upper and under side of a 

 totally different insect, under the name of P. Thersander, 

 and which he says were copied from Jones's figures. If 

 not artificial, they, however, represent one of the Nym- 

 phalidce {Charaxes sp.), as is evident from the head and 

 antennae. There are, however, no such figures in Jones's 

 * Icones : ' so that Donovan must have fallen into some 

 strange error respecting the species.'* 



Now, Donovan's figures represent a butterfly brown on 

 the upper side, with a macular yellow fascia on the fore- 

 wings, extending nearly to the tip of the wings, preceded 

 by a yeUow spot in the discoidal cell, and another in 

 the costal margin, near the middle of the wing, and 

 followed by a submarginal line of yellow linear trans- 

 verse marks, and rather large yellow incisures ; the hind- 

 wing traversed by an entire yellow band with irregular 

 margins, followed by a double row of submarginal spots, 

 large yellow incisures, and a single spatulate tail with 

 yellow edges ; the underside is of a lilac colour, the basal 

 half with dark undulating transverse lines (intended to 

 represent the longitudinally *^ nigro lineatse" of the 

 Fabrician description of the hind- wings), an entire 

 yellow central fascia extending across all the wings 

 obliquely, followed by two irregular series of lunules, of 

 which the outer consists of seven white ones correspond- 

 ing with the " denique lunulae septem albae " of the 

 Fabrician description. With these figures, so completely 

 at variance with those of Mr. Jones's 'Icones,' Donovan 

 published the following observations : — " The experienced 

 entomologist, conversant with the labours of Fabricius, 

 will be best enabled to appreciate the importance of the 

 plate which we now submit to his attention ; he will be 

 aware of the existence of this fine species of the Papilio 

 tribe from the description which Fabricius has left us ; 

 and he will also know that it is only from that description, 

 with the additional aid of Mr. Jones's drawings, that this 

 interesting and conspicuous species can be at this time 

 possibly ascertained, for there are no descriptions of the 

 species extant, except those repeated from the writings 

 of Fabricius, nor any figure excepting that in the col- 

 lectanea of Mr. Jones's drawings, to which Fabricius 

 exclusively refers. After having advanced the preced- 

 ing observations, it will be assuredly sufficient for us, in 

 order to ensure the attention of the entomologist, to 



